Wireless charging device

Abstract

A wireless charging device, comprising: a shell, wherein the shell is provided with a wireless charging assembly and a sliding adjustment assembly. The sliding adjustment assembly comprises a slide rail, a sliding member, a rack and a first limiting member, wherein the sliding member is slidably connected to the slide rail, and the rack is arranged on the slide rail and is provided with a plurality of rack slots. When the first limiting member separates from the rack slots, the sliding member slides along the slide rail, thus driving the wireless charging assembly to move relative to the sliding member; and when the first limiting member engages into any rack slot, sliding of the sliding member along the slide rail is limited. The wireless charging device allows for positional adjustment at both a starting point and an ending point and also within the range of travel between the starting point and the ending point.

Description

Wireless charging device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202323302081.4, filed on December 4, 2023, entitled “Wireless Charging Device,” the entire contents of which are incorporated herein for all purposes. Technical Field

[0003] The present application relates to the field of charging technology, and more specifically to a wireless charging device. Background Art

[0004] Mobile phones, tablets and other electronic devices can be attached to the wireless charger through magnetic attraction or other methods, and the wireless charger can charge the electronic devices through wireless charging methods such as electromagnetic induction, electromagnetic resonance or radio waves.

[0005] To accommodate different viewing needs, current wireless chargers can usually achieve a certain degree of position adjustment. Taking a car wireless charger as an example, after the car wireless charger is installed in the vehicle cabin, the user can adjust the car wireless charger up and down to meet the user's position requirements.

[0006] However, current wireless chargers can only adjust the position of two points, the starting point and the end point, and cannot adjust the position within the range between the starting point and the end point.

[0007] Public content

[0008] The present application provides a wireless charging device, which includes: a shell, the shell is provided with a wireless charging component and a sliding adjustment component; the sliding adjustment component includes a slide rail, a sliding member, a rack and a first limiting member; the sliding member is slidably connected to the slide rail, the rack is provided on the slide rail and the rack has a plurality of rack grooves; wherein, when the first limiting member is disengaged from the rack groove, the sliding member slides along the slide rail to drive the wireless charging component to move relative to the sliding member; when the first limiting member is engaged in any one of the rack grooves, the sliding member is restricted from sliding along the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and other purposes, features, and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0010] FIG1 is a schematic perspective view of a wireless charging device according to an embodiment of the present application.

[0011] FIG2 shows a schematic structural diagram of a sliding adjustment assembly according to an embodiment of the present application.

[0012] FIG3 shows an exploded schematic diagram of a sliding adjustment assembly according to an embodiment of the present application.

[0013] FIG4 shows a cross-sectional view of a wireless charging device according to an embodiment of the present application.

[0014] FIG5 shows a schematic structural diagram of a key assembly according to an embodiment of the present application.

[0015] FIG6 shows a schematic structural diagram of a key assembly according to another embodiment of the present application.

[0016] FIG7 shows a schematic structural diagram of a key assembly according to another embodiment of the present application.

[0017] In the accompanying drawings: 100 wireless charging device; 110 housing; 111 second slide groove; 120 wireless charging assembly; 130 sliding adjustment assembly; 131 slide rail; 132 sliding member; 1321 first slide member; 1322 second slide member; 1323 first slide groove; 1324 rivet; 133 rack; 1331 rack groove; 134 first stopper; 135 reset member; 140 button assembly; 1411 button; 14111 first rotation axis; 14112 linkage groove; 1412 transmission member; 14121 stopper groove; 1413 second stopper; 1414 third stopper; 1421 button; 14211 first inclined portion; 1422 transmission member; 14221 second inclined portion; 1431 button; 14311 second rotation axis; 14321 first transmission member; 14322 second transmission member; 1434 reset element; 150 fixing member. DETAILED DESCRIPTION

[0018] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0019] It should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present application to those skilled in the art. In the drawings, the dimensions and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals throughout represent like elements.

[0020] The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. When used herein, the singular forms "a", "an", and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the features, integers, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0021] In order to fully understand the present application, a detailed structure will be provided in the following description to illustrate the technical solution proposed in the present application. The preferred embodiments of the present application are described in detail below. However, in addition to these detailed descriptions, the present application may also have other implementation methods.

[0022] The following describes a wireless charging device 100 according to an embodiment of the present application with reference to Figures 1 to 7. As shown in Figure 1, the wireless charging device 100 includes a housing 110, which is provided with a wireless charging assembly 120 and a sliding adjustment assembly 130. The sliding adjustment assembly 130 includes a slide rail 131, a slider 132, a rack 133, and a first stopper 134. The slider 132 is slidably connected to the slide rail 131, and the rack 133 is provided on the slide rail 131 and has at least one rack groove 1331. When the first stopper 134 is disengaged from the rack groove 1331, the slider 132 slides along the slide rail 131, thereby driving the wireless charging assembly 120 to move relative to the slider 132. When the first stopper 134 is engaged with any rack groove 1331, it restricts the slider 132 from sliding along the slide rail 131.

[0023] It is understandable that the sliding member 132 can be located at the starting point of the slide rail 131 or can slide to the end point of the slide rail 131, so that the slide rail 131 can drive the wireless charging component 120 to achieve position adjustment at the starting point and the end point.

[0024] In addition, within the sliding stroke of the sliding member 132 along the sliding rail 131 between the starting point and the end point, when the first limiting member 134 is not engaged with the rack groove 1331, the first limiting member 134 is not restricted by the rack groove 1331, and the sliding member 132 can slide along the sliding rail 131, so that the sliding rail 131 can drive the wireless charging component 120 to move relative to the sliding member 132 to adjust the wireless charging component 120 to a suitable position; when the wireless charging component 120 is adjusted to a suitable position, the first limiting member 134 can be engaged with the rack groove 1331 corresponding to the position, and the first limiting member 134 is restricted by the rack groove 1331, so that the sliding member 132 cannot continue to slide along the sliding rail 131, thereby fixing the position of the wireless charging component 120.

[0025] Therefore, within the sliding travel of the slider 132 along the slide rail 131, the first stopper 134 can engage with any rack slot 1331 on the rack 133, thereby securing the wireless charging assembly 120 at the position corresponding to that rack slot 1331. As a result, each rack slot 1331 of the rack 133 serves as a position adjustment point for the wireless charging assembly 120. In addition to the starting and ending points, the wireless charging device 100 can also adjust at least one position. When there are multiple rack slots 1331, the wireless charging device 100 can achieve full position adjustment.

[0026] Based on this, the present application provides a wireless charging device 100 that can achieve multiple position adjustments. According to the wireless charging device 100 of the present application, within the sliding travel of the slider 132 along the slide rail 131, each rack groove 1331 of the rack 133 is a position adjustment point of the wireless charging component 120, so that the wireless charging device 100 can achieve position adjustment at two positions, namely the starting point and the end point, and can also achieve position adjustment within the travel between the starting point and the end point.

[0027] It is worth noting that since the wireless charging component 120 and the sliding adjustment component 130 are disposed in the housing 110, when the sliding member 132 slides along the sliding rail 131, the sliding rail 131 can not only drive the wireless charging component 120 to move relative to the sliding member 132, but also drive the housing 110 and other components disposed in the housing 110 to move relative to the sliding member 132.

[0028] In one example, the wireless charging assembly 120 can be a non-magnetic wireless charging assembly 120, a magnetic wireless charging assembly 120, or the like, without limitation. For a non-magnetic wireless charging assembly 120, the electronic device can be assembled to the housing 110 by means of a snap or the like. For a magnetic wireless charging assembly 120, the electronic device can be magnetically attached to the housing 110. After the electronic device is set to the housing 110, when the slider 132 slides along the slide rail 131, the electronic device can move with the housing 110, thereby adjusting the position of the electronic device to meet different viewing requirements.

[0029] In one example, the wireless charging component 120 can charge the electronic device through wireless charging methods such as electromagnetic induction, electromagnetic resonance, or radio waves, which are not limited to this.

[0030] In one example, the electronic device may be a mobile phone, a tablet, a smart watch, a headset, etc., without limitation.

[0031] In one example, as shown in Figures 2 and 3, the sliding member 132 has a first sliding groove 1323, and the first limiting member 134 is slidably set in the first sliding groove 1323, wherein the first limiting member 134 is configured to be engaged with one of the rack grooves 1331 or disengaged from the engaged rack groove 1331 when moving along the first sliding groove 1323.

[0032] For example, the direction indicated by arrow A in FIG2 is the engagement direction. When the first limiting member 134 moves along the engagement direction, it can be engaged in one of the rack grooves 1331 of the rack 133, so that the sliding member 132 cannot slide along the slide rail 131, thereby adjusting the wireless charging device 100 to the position corresponding to the rack groove 1331; correspondingly, the direction opposite to arrow A is the disengagement direction. When the first limiting member 134 moves along the disengagement direction, the first limiting member 134 disengages from the rack groove 1331 in which it is engaged, so that the sliding member 132 can slide normally along the slide rail 131, thereby changing the position of the wireless charging device 100.

[0033] In one example, as shown in Figure 3, the sliding member 132 may include a first sliding member 1321 and a second sliding member 1322, the first sliding member 1321 can be slidably set on the upper surface of the sliding rail 131, the second sliding member 1322 can be slidably set on the lower surface of the sliding rail 131, and the first sliding member 1321 and the second sliding member 1322 can be combined together by rivets 1324.

[0034] In one example, as shown in FIG1 , the wireless charging device 100 further includes: a button assembly 140 , disposed on the housing 110 , configured to drive the first limiting member 134 to disengage from the rack groove 1331 in which it is engaged when pressed.

[0035] In one example, as shown in FIG. 3 , the wireless charging device 100 further includes a reset member 135 configured to drive the first limit member 134 to engage in one of the rack grooves 1331 when the first limit member 134 is released from the driving action of the button assembly 140 .

[0036] Specifically, when the button assembly 140 is pressed, the button assembly 140 is displaced, and the button assembly 140 can apply a force to the first limit member 134, thereby driving the first limit member 134 to disengage from the rack groove 1331 in which it is inserted, so that the sliding member 132 can slide normally along the slide rail 131; when the button assembly 140 is reset, the first limit member 134 is no longer affected by the button assembly 140. At this time, the reset member 135 can drive the first limit member 134 to move in the opposite direction, so that the first limit member 134 is inserted into a rack groove 1331 of the rack 133 again, and the limit member can limit the sliding member 132 from sliding along the slide rail 131.

[0037] In one example, the reset member 135 can be a torsion spring, a spring, a spring sheet, etc., which is not limited to this. For example, FIG3 shows a schematic diagram of the reset member 135 being a torsion spring.

[0038] In one example, the button assembly 140 includes: a button, a button slot is provided on the shell 110, and the button is set in the button slot; a transmission member is located between the button and the first limit member 134; wherein, the button is configured to drive the first limit member 134 to disengage from the rack slot 1331 through the transmission member when it is pressed.

[0039] Specifically, when the button is pressed, it moves, and the button in turn drives the transmission member to move, thereby applying a force to the first limiting member 134 through the transmission member, so that the first limiting member 134 is disengaged from the rack groove 1331 in which it is inserted.

[0040] It should be noted that by transmitting the force applied to the key by the transmission member, a proportional adjustment can be achieved between the displacement of the key and the displacement of the first stopper 134. For example, if the displacement ratio of the key to the first stopper 134 is 1:3, then the key only needs to be pressed one displacement to cause the first stopper 134 to move three displacements, thus requiring only a slight press to disengage the first stopper 134 from the rack slot 1331 in which it is engaged.

[0041] In addition to adjusting the ratio of the button displacement to the displacement of the first stopper 134, the transmission member can also change the direction of the applied force, thereby achieving directional transmission of the applied force. For example, when the button is pressed in a first direction, the transmission member drives the first stopper 134 in a second direction, and the first stopper 134 disengages from the rack slot 1331 in the second direction, with the first direction being perpendicular to the second direction.

[0042] In one example, as shown in Figures 4 and 5, the button 1411 has a first rotating axis 14111 and a linkage groove 14112, and the button 1411 can rotate around the first rotating axis 14111; one end of the transmission member 1412 is slidably set in the linkage groove 14112, and the other end is in contact with the first limit member 134; wherein, the button 1411 is configured to rotate around the first rotating axis 14111 when pressed, so that one end of the transmission member 1412 slides in the linkage groove 14112, and the other end pushes the first limit member 134 to disengage from the rack groove 1331 in which it is inserted.

[0043] Specifically, the end of the transmission member 1412 that slides in the linkage groove 14112 can be considered a sliding end, and the end of the transmission member 1412 that contacts the first stopper 134 can be considered a contact end. When the button 1411 is pressed, the linkage groove 14112 can rotate about the first rotation axis 14111, thereby causing the sliding end of the transmission member 1412 to slide along the linkage groove 14112. The sliding end of the transmission member 1412 can then drive the contact end of the transmission member 1412 to move, thereby applying a force to the first stopper 134 through the contact end of the transmission member 1412, pushing the first stopper 134 out of the rack groove 1331 in which it is inserted.

[0044] It should be noted that the ratio of the displacements of the button 1411 and the first limiting member 134 may be related to the curvature of the linkage slot 14112. For example, when the button 1411 is pressed, a first displacement occurs. When the transmission member 1412 drives the first limiting member 134 to disengage from the rack slot 1331 in which it is engaged, the first limiting member 134 undergoes a second displacement. The ratio of the second displacement to the first displacement is related to the curvature of the linkage slot 14112. Thus, the ratio of the displacements of the button 1411 and the first limiting member 134 can be changed by adjusting the curvature of the linkage slot 14112.

[0045] Moreover, by sliding the sliding end along the arc track of the linkage groove 14112, the spatial axial direction of the force can be changed in a very small space in the shell 110.

[0046] In one example, as shown in Figure 6, the button 1421 has a first inclined portion 14211; one end of the transmission member 1422 has a second inclined portion 14221 matching the first inclined portion 14211, and the other end contacts the first limit member 134; wherein, when the button 1421 is pressed, it is configured to push the transmission member 1422 to move through the first inclined portion 14211 and the second inclined portion 14221, so that the transmission member 1422 pushes the first limit member 134 to disengage from the rack groove 1331 in which it is inserted.

[0047] Specifically, the button 1421 is displaced when it is pressed, and the button 1421 can then apply a force to the second inclined portion 14221 through the first inclined portion 14211, so that the transmission member 1422 is also displaced, so that the end of the transmission member 1422 in contact with the first limiting member 134 can apply a force to the first limiting member 134, pushing the first limiting member 134 out of the rack groove 1331 in which it is inserted.

[0048] It should be noted that the displacement ratio between the button 1421 and the first limiting member 134 may be related to the inclination angles of the first inclined portion 14211 and the second inclined portion 14221. For example, when the button 1421 is pressed, a first displacement occurs. When the transmission member 1422 drives the first limiting member 134 to disengage from the rack groove 1331 in which it is engaged, the first limiting member 134 undergoes a second displacement. The ratio of the second displacement to the first displacement is related to the inclination angles of the first inclined portion 14211 and the second inclined portion 14221. Therefore, the displacement ratio between the button 1421 and the first limiting member 134 can be changed by adjusting the inclination angles of the first inclined portion 14211 and the second inclined portion 14221.

[0049] Moreover, by applying a force to the second inclined portion 14221 through the first inclined portion 14211 , the spatial axial direction of the force can be changed within a very small space in the housing 110 .

[0050] In one example, as shown in Figure 7, the transmission member includes a first transmission member 14321 and a second transmission member 14322, the second transmission member 14322 contacts the first limit member 134, one end of the first transmission member 14321 contacts the button 1431, and the other end contacts the second transmission member 14322; the first transmission member 14321 has a second rotating axis 14311, and the first transmission member 14321 can rotate around the second rotating axis 14311; wherein, the button 1431 is configured to drive the first transmission member 14321 to rotate around the second rotating axis 14311 when it is pressed, so that the first transmission member 14321 drives the first limit member 134 to disengage from the rack groove 1331 in which it is stuck through the second transmission member 14322.

[0051] Specifically, the first transmission member 14321 can be considered a lever. When the button 1431 is pressed, it moves. The end of the button 1431 in contact with the first transmission member 14321 can drive the first transmission member 14321 to rotate about the second rotation axis 14311. When the first transmission member 14321 rotates, the end of the button 14321 in contact with the second transmission member 14322 can apply a force to the second transmission member 14322. In turn, the second transmission member 14322 applies a force to the first limiting member 134, thereby pushing the first limiting member 134 out of the rack slot 1331 in which it is inserted.

[0052] Furthermore, the first transmission member 14321 may be connected to a reset element 1434 for resetting the first transmission member 14321. When the first transmission member 14321 is released from the action of the button 1431, the reset element 1434 can drive the first transmission member 14321 to reset. For example, the reset element 1434 may be a torsion spring, a spring, a spring, or the like, without limitation. For example, FIG7 shows a schematic diagram of the reset member 135 being a torsion spring.

[0053] It should be noted that the displacement ratio between the button 1431 and the first limiting member 134 may be related to the length ratio between the first transmission member 14321 and the second transmission member 14322. For example, when the button 1431 is pressed, a first displacement occurs. When the first transmission member 14321 drives the first limiting member 134 to disengage from the rack groove 1331 in which it is engaged via the second transmission member 14322, the first limiting member 134 undergoes a second displacement. The ratio of the second displacement to the first displacement is related to the length ratio between the first transmission member 14321 and the second transmission member 14322. Therefore, the displacement ratio between the button 1431 and the first limiting member 134 can be changed by adjusting the length ratio between the first transmission member 14321 and the second transmission member 14322.

[0054] Moreover, through the leverage of the first transmission member 14321 , torque conversion can be achieved in a very small space within the housing 110 .

[0055] In one example, as shown in FIG5 , the button assembly 140 may further include a second stopper 1413 disposed on the housing 110 ; the transmission member has a stopper slot 14121 , and the second stopper 1413 is located within the stopper slot 14121 to limit movement of the transmission member along the sliding direction of the slider 132 . The second stopper 1413 ensures that when the button is pressed and a force is applied to the transmission member, the transmission member only pushes the first stopper 134 in the second direction to disengage from the rack slot 1331 in which it is engaged, and the transmission member does not wobble left or right along the sliding direction of the slider 132 .

[0056] It is worth noting that when the transmission member includes a first transmission member 14321 and a second transmission member 14322, the limiting groove 14121 is arranged in the second transmission member 14322 in contact with the first limiting member 134, and the second limiting member 1413 can limit the second transmission member 14322 from shaking left and right along the sliding direction of the sliding member 132.

[0057] In one example, as shown in FIG1 , the wireless charging device 100 may further include: a fixing member 150 , wherein the housing 110 has a second slide groove 111 , the fixing member 150 is passed through the second slide groove 111 , and one end of the fixing member 150 is connected to the sliding member 132 , and the other end is used for fixed connection with the outside world.

[0058] In one example, the fixing member 150 may be fixedly connected to the outside world by clamping, snap connection, threaded connection, etc., which is not limited.

[0059] The external environment can be a vehicle cabin, a desktop, or the like, and is not limited thereto. For example, when the wireless charging device 100 is mounted in a vehicle cabin via the fixing member 150, after the user presses the button assembly 140, the first stopper 134 disengages from the rack groove 1331 in which it is engaged. At this point, the user can manually press down or move the housing 110 upward, causing the slider 132 to slide along the slide rail 131. The slide rail 131 drives the wireless charging assembly 120 to move relative to the slider 132, thereby adjusting the height of the wireless charging device 100. After adjusting to the desired height, the user releases their hand from the button assembly 140, and the first stopper 134, under the action of the reset member 135, engages one of the rack grooves 1331 of the rack 133, thereby securing the wireless charging device 100 at the desired height.

[0060] To sum up, according to the wireless charging device of the embodiment of the present application, within the sliding travel of the sliding member along the slide rail, each rack groove of the rack is a position adjustment point of the wireless charging component, so that the wireless charging device can realize the adjustment of the two position points of the starting point and the end point, and can also realize the position adjustment within the travel between the starting point and the end point.

[0061] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely illustrative and are not intended to limit the scope of the present application. Various changes and modifications may be made therein by those skilled in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0062] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various application aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this approach of the present application should not be interpreted as reflecting the intention that the claimed application requires more features than those explicitly recited in each claim. More precisely, as reflected in the corresponding claims, the point of the application is that the corresponding technical problem can be solved with fewer features than all the features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present application.

[0063] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

[0064] It should be noted that the above embodiments are illustrative rather than limiting of the present application, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The use of the words first, second, and third, etc., does not denote any order. These words may be interpreted as designations.

Claims

1. A wireless charging device, characterized in that: The wireless charging device comprises: A housing, wherein the housing is provided with a wireless charging component and a sliding adjustment component; The sliding adjustment assembly includes a slide rail, a sliding member, a rack and a first limit member; the sliding member is slidably connected to the slide rail, the rack is arranged on the slide rail and has a plurality of rack grooves; When the first limiting member is disengaged from the rack groove, the sliding member slides along the slide rail to drive the wireless charging component to move relative to the sliding member; when the first limiting member is inserted into any one of the rack grooves, the sliding member is restricted from sliding along the slide rail.

2. The wireless charging device according to claim 1, wherein: The sliding member has a first sliding groove, and the first limiting member is slidably arranged in the first sliding groove, wherein the first limiting member is configured to be inserted into one of the rack grooves or to be disengaged from the inserted rack groove when moving along the first sliding groove.

3. The wireless charging device according to claim 1 or 2, characterized in that: The wireless charging device also includes: A button, wherein the housing is provided with a button slot, and the button is arranged in the button slot; A transmission member, located between the button and the first limiting member; Wherein, the button is configured to drive the first limiting member to disengage from the rack groove in which it is inserted through the transmission member when being pressed.

4. The wireless charging device according to claim 3, characterized in that: The button has a first rotation axis and a linkage groove, and the button can rotate around the first rotation axis; One end of the transmission member is slidably disposed in the linkage groove, and the other end is in contact with the first limiting member; Wherein, the button is configured to rotate around the first rotation axis when pressed, so that one end of the transmission member slides in the linkage groove, and the other end pushes the first limiting member to disengage from the rack groove in which it is inserted.

5. The wireless charging device according to claim 4, characterized in that: When the button is pressed, a first displacement occurs. When the transmission member drives the first limiting member to disengage from the rack groove in which it is inserted, a second displacement occurs in the first limiting member. The ratio of the second displacement to the first displacement is related to the curvature of the linkage groove.

6. The wireless charging device according to claim 3, wherein: The button has a first inclined portion; One end of the transmission member has a second inclined portion matching the first inclined portion, and the other end is in contact with the first limiting member; Wherein, the button is configured to push the transmission member to move through the first inclined portion and the second inclined portion when being pressed, so that the transmission member pushes the first limiting member to disengage from the rack groove in which it is inserted.

7. The wireless charging device according to claim 6, wherein: When the button is pressed, a first displacement occurs. When the transmission member drives the first limiting member to disengage from the rack groove in which it is inserted, a second displacement occurs in the first limiting member. The ratio of the second displacement to the first displacement is related to the inclination angles of the first inclined portion and the second inclined portion.

8. The wireless charging device according to claim 3, wherein: The transmission member includes a first transmission member and a second transmission member, the second transmission member contacts the first limit member, one end of the first transmission member contacts the key, and the other end contacts the second transmission member; the first transmission member has a second rotation axis, and the first transmission member can rotate around the second rotation axis; Wherein, the button is configured to drive the first transmission member to rotate around the second rotation axis when being pressed, so that the first transmission member drives the first limiting member to disengage from the rack groove in which it is inserted through the second transmission member.

9. The wireless charging device according to claim 8, characterized in that: When the button is pressed, a first displacement occurs. When the first transmission member drives the first limiting member to disengage from the rack groove in which it is inserted through the second transmission member, a second displacement occurs in the first limiting member. The ratio of the second displacement to the first displacement is related to the length ratio of the first transmission member to the second transmission member.

10. The wireless charging device according to claim 3, wherein: The wireless charging device also includes: The second limiting member is arranged on the housing; the transmission member has a limiting groove, and the second limiting member is located in the limiting groove, and is used for limiting the movement of the transmission member along the sliding direction of the sliding member.

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